Ilnitsky R. Electrochemical intercalation of nanodispersive titania by lithium

Object. Intercalates on the basis of nanodispersive titania got by the fumed method depending on the synthesis conditions. Purpose. Research physical and chemical regularities and peculiarities of lithium ions intercalation process in nanocrystal titanias depending on the method of their obtaining, as bases for the creation of high-energy lithium power sources of 3 V - class. Methods. Complex of the investigation methods are applied, i.e. the methods of electromotive force, impedance spectroscopy, X-ray photoelectron and X-ray emission spectroscopy, second ion mass spectroscopy in combination with mathematical treatment of experimental results. Results. Optimum ratios of anatase and rutile structure contents of titania and optimum particles size were set, at which there is the substantial rise of guest" loading degree. Regularities of change of the lithium diffusivity and charge transfer stage resistance in nanodispersive titania of a different phase composition are explored depending on the intercalation degree. trained The transformation of electronic structure of nanocrystal mixture of rutile and anatase structure of titania intercalated by the lithium ions was exposed and studied. Application. The got results can be used in scientific establishments and enterprises during the synthesis of materials and making of electrochemical lithium power sources on the basis of nanodispersive titania.